Synnefo » snf-ganeti » ganeti-local

New ``gnt-cluster epo`` Command

+++++++++++++++++++++++++++++++

| Program: ``gnt-cluster``

| Command: ``epo``

| Parameter: ``--on`` ``--force`` ``--groups`` ``--all``

| Options: ``--on``: By default epo turns off, with ``--on`` it tries to get the

|                    cluster back online

|          ``--force``: To force the operation without asking for confirmation

|          ``--groups``: To operate on groups instead of nodes

|          ``--all``: To operate on the whole cluster

This is a convenience command to allow easy emergency power off of a whole

cluster or part of it. It takes care of all steps needed to get the cluster into

a sane state to turn off the nodes.

With ``--on`` it does the reverse and tries to bring the rest of the cluster back

to life.

.. note::

  The master node is not able to shut itself cleanly down. Therefore, this

  command will not do all the work on single node clusters. On multi node

  clusters the command tries to find another master or if that is not possible

  prepares everything to the point where the user has to shutdown the master

  node itself alone this applies also to the single node cluster configuration.